Welcome to the North American Subaru Impreza Owners Club Tuesday March 2, 2021
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 07-25-2012, 04:44 PM   #1
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default 07 Sti Front Diff noises

Hi guys


I have a noise that seems from my front end. After bringing it to my local shop, they checked for that noise, the axles are tight and the front end is solid, they say I might be my front or center diff.



Here are the symptoms:


When I turn with the DCCD on auto, there is a noise from the front end like the wheels are having trouble turning, feels like front not unlocking properly.



The more you turn the worst it is.



No noise when turning wheel standing still


Not as bad on loose surface.


With the DCCD all the way back, the noise is minimal, almost non-existent. The car feels normal. This is how I run my car all the time now.


Transmission works perfectly, change all the fluids in the car this autumn; I used Redline 75W90 NS GL-5 Gear Oil in the Trans and 75W90 GL-5 Gear Oil in the rear diff.



No issues or noises when driving straight, with the DCCD auto or all the way back


opinions?
* Registered users of the site do not see these ads.
the_mirra is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-25-2012, 05:31 PM   #2
trev762
Scooby Specialist
 
Member#: 280572
Join Date: Apr 2011
Chapter/Region: E. Canada
Location: southern ontario canada
Vehicle:
2011 sti sedan
plasma blue pearl

Default

Does it sound like when a skate board wheel bearing is gone but with slight rattle to it like a loose heat sheild.
trev762 is offline   Reply With Quote
Old 07-26-2012, 10:40 PM   #3
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

Quote:
Originally Posted by trev762
Does it sound like when a skate board wheel bearing is gone but with slight rattle to it like a loose heat sheild.
No, it's more a mechanical sound, like the front wheels are locked
the_mirra is offline   Reply With Quote
Old 07-27-2012, 10:11 AM   #4
All4bSpinnin
Scooby Guru
 
Member#: 99102
Join Date: Oct 2005
Chapter/Region: South East
Location: Jax, FL
Vehicle:
17 BMW M2
Long Beach Blue 6MT

Default

when you turn the wheel, does it sound/feed like the car is binding up?

Have you changed your trans fluid?
All4bSpinnin is offline   Reply With Quote
Old 07-27-2012, 08:26 PM   #5
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

Quote:
Originally Posted by All4bSpinnin
when you turn the wheel, does it sound/feed like the car is binding up?

Have you changed your trans fluid?
Only when dccd in auto while moving and turning, no problem turning stationary so I don't think its my suspension. No issues with the trans.

Yep, like mentioned in the first post.
the_mirra is offline   Reply With Quote
Old 07-27-2012, 08:55 PM   #6
ardevas09
Scooby Specialist
 
Member#: 164710
Join Date: Nov 2007
Chapter/Region: MAIC
Location: BFE and you gotta purty mouth
Vehicle:
05 440whp STi
2014 Evo X

Default

have you done any work to it recently?
ardevas09 is offline   Reply With Quote
Old 07-30-2012, 06:37 PM   #7
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

Quote:
Originally Posted by ardevas09
have you done any work to it recently?
Nothing else than what I mentioned in the first post.

How can I check my front diff?
the_mirra is offline   Reply With Quote
Old 07-31-2012, 05:10 PM   #8
tekfoc
Scooby Specialist
 
Member#: 21392
Join Date: Jul 2002
Chapter/Region: Tri-State
Location: NEW YORK CITY
Vehicle:
2016 C63S AMG MB
Iridium /MB C300 4MATIC

Default

check and clean your wheel speed sensors.
when dirty or bad this will cause binding .
tekfoc is offline   Reply With Quote
Old 07-31-2012, 05:41 PM   #9
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

Quote:
Originally Posted by tekfoc View Post
check and clean your wheel speed sensors.
when dirty or bad this will cause binding .
Thanks, I will have a look at that. Would I see a ABS light or codes associate with this?

Is there anything I could physically do to check my front diff?
the_mirra is offline   Reply With Quote
Old 07-31-2012, 06:13 PM   #10
trev762
Scooby Specialist
 
Member#: 280572
Join Date: Apr 2011
Chapter/Region: E. Canada
Location: southern ontario canada
Vehicle:
2011 sti sedan
plasma blue pearl

Default

Quote:
Originally Posted by tekfoc
check and clean your wheel speed sensors.
when dirty or bad this will cause binding .
Hey tekfoc can u explain in further detail about how to go about cleaning and what products r safe to use on the speed sensors.
trev762 is offline   Reply With Quote
Old 07-31-2012, 06:32 PM   #11
tekfoc
Scooby Specialist
 
Member#: 21392
Join Date: Jul 2002
Chapter/Region: Tri-State
Location: NEW YORK CITY
Vehicle:
2016 C63S AMG MB
Iridium /MB C300 4MATIC

Default

Quote:
Originally Posted by trev762 View Post
Hey tekfoc can u explain in further detail about how to go about cleaning and what products r safe to use on the speed sensors.
parts cleaner or brake cleaner sprayed to a rag .

just follow the electrical wiring to the wheel hub .
unbolt, disconnect electrical connection and remove sensor. start cleaning .do the rear sensors also!!!!!!!!!!!!

http://www.iwsti.com/forums/how-inst...l-sensors.html



Last edited by tekfoc; 08-27-2012 at 06:23 PM.
tekfoc is offline   Reply With Quote
Old 07-31-2012, 06:55 PM   #12
trev762
Scooby Specialist
 
Member#: 280572
Join Date: Apr 2011
Chapter/Region: E. Canada
Location: southern ontario canada
Vehicle:
2011 sti sedan
plasma blue pearl

Default

Quote:
Originally Posted by tekfoc

parts cleaner or brake cleaner sprayed to a rag .

just follow the electrical wiring to the wheel hub .
unbolt, disconnect electrical connection and remove sensor. start cleaning .
Thx tekfoc would a non chlorinated maf cleaner or throttle body cleaner work also besides brake cleaner as brake cleaner can be harsh on certain things. Not second guessing u just would like to start off with something not as abrasive or is brake cleaner not harsh on speed sensors.

I've tried time and time again researching about center diff issues as iam experiencing like a binding issue only at the track in hairpin turns in 3rd gear under wot at around 3-3,500rpm range. If I gear down to 2nd no issue but I loose alot of moment doing so. Sorry for the thread jack but maybe this might help also op.

Last edited by trev762; 07-31-2012 at 07:06 PM.
trev762 is offline   Reply With Quote
Old 07-31-2012, 07:07 PM   #13
tekfoc
Scooby Specialist
 
Member#: 21392
Join Date: Jul 2002
Chapter/Region: Tri-State
Location: NEW YORK CITY
Vehicle:
2016 C63S AMG MB
Iridium /MB C300 4MATIC

Default

Quote:
Originally Posted by trev762 View Post
Thx tekfoc would a non chlorinated maf cleaner or throttle body cleaner work also besides brake cleaner as brake cleaner can be harsh on certain things. Not second guessing u just would like to start off with something not as abrasive or is brake cleaner not harsh on speed sensors
sure use rubbing alcohol if your worried or maf cleaner .
tekfoc is offline   Reply With Quote
Old 08-11-2012, 05:24 PM   #14
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

I cleaned my both of my sensors but there is no changes.
Anything else I could try out?
the_mirra is offline   Reply With Quote
Old 08-11-2012, 05:43 PM   #15
Aaron'z 2.5RS
Scooby Guru
 
Member#: 1026
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Hickigan
Vehicle:
'00 RS/WRX Stg5
'98 RS Stock

Default

Wheel bearings? do you get any noise from the front end, doing about 30mph and veering left to right slightly? (loading the bearings)

I've had them go straight down the road and bind turning..
Aaron'z 2.5RS is offline   Reply With Quote
Old 08-11-2012, 11:00 PM   #16
the_mirra
Scooby Newbie
 
Member#: 295180
Join Date: Sep 2011
Chapter/Region: E. Canada
Location: NB
Vehicle:
2007 USDM STI
WR Blue

Default

Quote:
Originally Posted by Aaron'z 2.5RS
Wheel bearings? do you get any noise from the front end, doing about 30mph and veering left to right slightly? (loading the bearings)

I've had them go straight down the road and bind turning..
No, wheel Bearing had been inspected replaced on one side last month. the noise was there prior to that.

It seems worse when turning full lock and reversing but only when dccd is on auto
the_mirra is offline   Reply With Quote
Old 08-11-2012, 11:26 PM   #17
tekfoc
Scooby Specialist
 
Member#: 21392
Join Date: Jul 2002
Chapter/Region: Tri-State
Location: NEW YORK CITY
Vehicle:
2016 C63S AMG MB
Iridium /MB C300 4MATIC

Default

if your throttle tables are adjusted too agressive this can affect the dccd.
have your tuner lower the values and see what happans .
if this is not the issue your dccd is damaged , have subaru look in to it .
tekfoc is offline   Reply With Quote
Old 08-12-2012, 11:05 PM   #18
Bamofo
Scooby Specialist
 
Member#: 159743
Join Date: Sep 2007
Location: Plymouth Ma
Vehicle:
07 STI Limited
TurboMike Tuned 2.35

Default

it sounds like you center diff is binding... or your dccd controller is not working properly.
Bamofo is offline   Reply With Quote
Old 01-12-2021, 02:23 AM   #19
XXXJohnny.C
Scooby Newbie
 
Member#: 521592
Join Date: Jan 2021
Default

Quote:
Originally Posted by the_mirra View Post

I have a noise that seems from my front end. After bringing it to my local shop, they checked for that noise, the axles are tight and the front end is solid, they say I might be my front or center diff.
Hi Mirra, Apparently I ve overcomed with the same problem. Mine is a 11 wrx without DCCD, recently it started to make a crunking sound only when turning left with reletively high speed like 40 - 50 kph / turning right with 60 - 70 kph.
I have replaced drive shaft and double checked the tranny oil. Here s what happened. There was only less than 1 L of tranny oil in the gearbox!!! I reckon the diff was broken due to lack of tranny oil.
Question if how did you fix your problem in the end? Was is mechanical or electrical?
Cheers.
Johnny
XXXJohnny.C is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 07:21 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.